Molybdenite on Quartz and Muscovite

Hoyo de Manzanares, Comarca Sierra de Guadarrama-Alto Manzanares, Community of Madrid  Spain

Specimen size: 6.3 × 6 × 3 cm = 2.48” × 2.36” × 1.18”
Main crystal size: 2.4 × 2.4 cm = 0.94” × 0.94”